[ISSUE #8309] Sync services and endpoints from k8s

console/pom.xml

@@ -50,6 +50,10 @@
             <groupId>${project.groupId}</groupId>
             <artifactId>nacos-istio</artifactId>
         </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>nacos-k8s-sync</artifactId>
+        </dependency>
 
         <!-- log -->
         <!-- log4j通过slf4j来代理 -->

console/src/main/resources/application.properties

@@ -151,7 +151,13 @@ nacos.core.auth.plugin.nacos.token.secret.key=SecretKey0123456789012345678901234
 ### If turn on the MCP server:
 nacos.istio.mcp.server.enabled=false
 
+#*************** K8s Related Configurations ***************#
+### If turn on the K8s sync:
+nacos.k8s.sync.enabled=false
 
+### If use the Java API from an application outside a kubernetes cluster
+#nacos.k8s.sync.outsideCluster=false
+#nacos.k8s.sync.kubeConfig=/.kube/config
 
 ###*************** Add from 1.3.0 ***************###
 

distribution/conf/application.properties

@@ -177,6 +177,14 @@ nacos.core.auth.plugin.nacos.token.secret.key=SecretKey0123456789012345678901234
 ### If turn on the MCP server:
 nacos.istio.mcp.server.enabled=false
 
+#*************** K8s Related Configurations ***************#
+### If turn on the K8s sync:
+nacos.k8s.sync.enabled=false
+
+### If use the Java API from an application outside a kubernetes cluster
+#nacos.k8s.sync.outsideCluster=false
+#nacos.k8s.sync.kubeConfig=/.kube/config
+
 #*************** Core Related Configurations ***************#
 
 ### set the WorkerID manually

distribution/conf/application.properties.example

@@ -178,6 +178,14 @@ nacos.core.auth.server.identity.value=security
 ### If turn on the MCP server:
 nacos.istio.mcp.server.enabled=false
 
+#*************** K8s Related Configurations ***************#
+### If turn on the K8s sync:
+nacos.k8s.sync.enabled=false
+
+### If use the Java API from an application outside a kubernetes cluster
+#nacos.k8s.sync.outsideCluster=false
+#nacos.k8s.sync.kubeConfig=/.kube/config
+
 #*************** Core Related Configurations ***************#
 
 ### set the WorkerID manually

distribution/conf/nacos-logback.xml

@@ -582,6 +582,23 @@
         </encoder>
     </appender>
 
+    <appender name="k8s-sync-main"
+        class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${LOG_HOME}/k8s-sync-main.log</file>
+        <append>true</append>
+        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
+            <fileNamePattern>${LOG_HOME}/k8s-sync-main.log.%d{yyyy-MM-dd}.%i</fileNamePattern>
+            <maxFileSize>2GB</maxFileSize>
+            <maxHistory>7</maxHistory>
+            <totalSizeCap>7GB</totalSizeCap>
+            <cleanHistoryOnStart>true</cleanHistoryOnStart>
+        </rollingPolicy>
+        <encoder>
+            <Pattern>%date %level %msg%n%n</Pattern>
+            <charset>UTF-8</charset>
+        </encoder>
+    </appender>
+
 
     <logger name="com.alibaba.nacos.address.main" additivity="false">
         <level value="INFO"/>
@@ -702,6 +719,11 @@
         <level value="DEBUG"/>
         <appender-ref ref="core-auth"/>
     </logger>
+
+    <logger name="com.alibaba.nacos.k8s.sync.main" additivity="false">
+        <level value="DEBUG"/>
+        <appender-ref ref="k8s-sync-main"/>
+    </logger>
 
     <logger name="com.alibaba.nacos.core.protocol.raft" additivity="false">
         <level value="INFO"/>

k8s-sync/pom.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 1999-2022 Alibaba Group Holding Ltd.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>nacos-all</artifactId>
+        <groupId>com.alibaba.nacos</groupId>
+        <version>${revision}</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>nacos-k8s-sync</artifactId>
+    <packaging>jar</packaging>
+
+    <name>nacos-k8s-sync ${project.version}</name>
+    <url>http://nacos.io</url>
+
+    <dependencies>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>nacos-core</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>nacos-naming</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>io.kubernetes</groupId>
+            <artifactId>client-java-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.kubernetes</groupId>
+            <artifactId>client-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-beans</artifactId>
+            <version>5.3.20</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

k8s-sync/src/main/java/com/alibaba/nacos/k8s/sync/K8sSyncConfig.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.nacos.k8s.sync;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+
+/**
+ * Configurations for k8s integration.
+ *
+ * @author EmanuelGi
+ */
+@Component
+public class K8sSyncConfig {
+    @Value("${nacos.k8s.sync.enabled:false}")
+    private boolean enabled = false;
+
+    @Value("${nacos.k8s.sync.outsideCluster:false}")
+    private boolean outsideCluster = false;
+
+    @Value("${nacos.k8s.sync.kubeConfig:}")
+    private String kubeConfig;
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public boolean isOutsideCluster() {
+        return outsideCluster;
+    }
+
+    public String getKubeConfig() {
+        return kubeConfig;
+    }
+}